dorsal/arxiv
View SchemaOptimal Broadcasting of Mixed States
| Authors | Gui-Fang Dang, Heng Fan |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0609182 |
| URL | https://arxiv.org/abs/quant-ph/0609182 |
| DOI | 10.1103/PhysRevA.76.022323 |
| Journal | Phys. Rev. A 76, 022323 (2007) |
Abstract
The N to M (M>N) universal quantum broadcasting of mixed states are proposed for qubits system. The broadcasting of mixed states is universal and optimal in the sense that the shrinking factor is independent of input state and achieves the upper bound. The quantum broadcasting of mixed qubits is a generalization of the universal quantum cloning machine for identical pure input states. A new pure state decompositions of the identical mixed qubits are obtained.
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"abstract": "The N to M (M\u003eN) universal quantum broadcasting of mixed states are proposed\nfor qubits system. The broadcasting of mixed states is universal and optimal in\nthe sense that the shrinking factor is independent of input state and achieves\nthe upper bound. The quantum broadcasting of mixed qubits is a generalization\nof the universal quantum cloning machine for identical pure input states. A new\npure state decompositions of the identical mixed qubits are obtained.",
"arxiv_id": "quant-ph/0609182",
"authors": [
"Gui-Fang Dang",
"Heng Fan"
],
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"quant-ph"
],
"doi": "10.1103/PhysRevA.76.022323",
"journal_ref": "Phys. Rev. A 76, 022323 (2007)",
"title": "Optimal Broadcasting of Mixed States",
"url": "https://arxiv.org/abs/quant-ph/0609182"
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